On Wed, Aug 4, 2010 at 6:00 AM, LogLord <nils.sch...@web.de> wrote: > > Hi, > > I have a dataframe with a rather complicated descriptive column (V9): > >> test3[(1:3), ] > V1 V4 V5 > 10 1 4559 7173 > 17 1 58954 59871 > 19 1 357522 358458 > > V9 > 10 ID=NM_182905.1;Name=NM_182905;Alias=FLJ00038;Note=hypothetical protein > LOC375690 > 17 ID=NM_001005484;Alias=OR4F5;Note=olfactory receptor%2C family 4%2C > subfamily F > 19 ID=NM_001005224.1;Name=NM_001005224;Alias=OR4F3;Note=olfactory > receptor%2C family 4%2C subfamily F >> > > I have problems to extract two strings from this column (V9). First I need > the "ID=..." and second I need the "Alias=..." both in seperate columns. I > tried it with substr() but due to the different length and no wildcard > allowance it did not work. >
A similar question was asked last month. See: http://permalink.gmane.org/gmane.comp.lang.r.general/197059 and the other posts in the same thread for other solutions. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.